entr

all

Run arbitrary commands when files change. See also: `watchexec`.

Examples (7)

Rebuild with `make` if any file in any subdirectory changes

ag --files-with-matches | entr make

Rebuild and test with `make` if any `.c` source files in the current directory change

ls *.c | entr 'make && make test'

Send a `SIGTERM` to any previously spawned ruby subprocesses before executing `ruby main.rb`

ls *.rb | entr -r ruby main.rb

Run a command with the changed file (`/_`) as an argument

ls *.sql | entr psql -f /_

[c]lear the screen and run a query after the SQL script is updated

echo my.sql | entr -cp psql -f /_

Rebuild the project if source files change, limiting output to the first few lines

find src/ | entr -s 'make | sed 10q'

Launch and auto-[r]eload a Node.js server

ls *.js | entr -r node app.js